Hook



FIG. 1 is a perspective view of the hook according to the invention;

FIG. 2 is a right side view of the hook;

FIG. 3 is a left side view of the hook;

FIG. 4 is a front view of the hook;

FIG. 5 is a rear view of the hook;

FIG. 6 is a top view of the hook; and,

FIG. 7 is a bottom view of the hook.

The broken line showing of structure is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a hook, as shown and described. 